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English definition of “accumulate”

accumulate

verb uk   /əˈkjuː.mjʊ.leɪt/ us  
C2 [T] to collect a large number of things over a long period of time: As people accumulate more wealth, they tend to spend a greater proportion of their incomes. The company said the debt was accumulated during its acquisition of nine individual businesses. We've accumulated so much rubbish over the years. C2 [I] to gradually increase in number or amount: A thick layer of dust had accumulated in the room. If you don't go through the papers on your desk on a regular basis, they just keep on accumulating.
(Definition of accumulate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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